package com.awen.community.service;

import com.awen.community.dao.LoginTicketMapper;
import com.awen.community.dao.UserMapper;
import com.awen.community.entity.LoginTicket;
import com.awen.community.entity.User;
import com.awen.community.util.CommunityConstant;
import com.awen.community.util.CommunityUtil;
import com.awen.community.util.MailClient;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;

/**
 * @author Liu Awen Email:willowawen@gmail.com
 * @create 2020-04-25 17:51
 */
@Service
public class UserService implements CommunityConstant {
    @Autowired(required = false)
    private UserMapper userMapper;
    @Autowired
    private MailClient mailClient;
    @Autowired
    private TemplateEngine templateEngine;
    @Autowired(required = false)
    private LoginTicketMapper loginTicketMapper;

    @Value("${community.path.domain}")
    private String domain;
    //server.servlet.context-path=/community
    //community.path.domain=http://localhost:8080
    @Value("${server.servlet.context-path}")
    private String contextPath;

    public User findUserById(int id) {
        return userMapper.selectById(id);
    }

    public Map<String, Object> register(User user) {
        Map<String, Object> map = new HashMap<>();
        // 空值处理
        if (user == null) {
            throw new IllegalArgumentException("参数不能为空!");
        }
        if (StringUtils.isBlank(user.getUsername())) {
            map.put("usernameMsg", "账号不能为空");
            return map;
        }
        if (StringUtils.isBlank(user.getPassword())) {
            map.put("passwordMsg", "密码不能为空");
            return map;
        }
        if (StringUtils.isBlank(user.getEmail())) {
            map.put("emailMsg", "邮箱不能为空");
            return map;
        }
        //验证账号
        User u = userMapper.selectByName(user.getUsername());
        if (u != null) {
            map.put("usernameMsg", "该用户名已存在");
            return map;
        }
        //验证邮箱
        u = userMapper.selectByEmail(user.getEmail());
        if (u != null) {
            map.put("emailMsg", "该邮箱已被注册");
            return map;
        }
        //注册用户
        user.setSalt(CommunityUtil.generateUUID().substring(0, 5));
        user.setPassword(CommunityUtil.md5(user.getPassword() + user.getSalt()));

        user.setType(0);
        user.setStatus(0);//没有激活

        user.setActivationCode(CommunityUtil.generateUUID());
        //%d
        user.setHeaderUrl(String.format("http://images.nowcoder.com/#dt.png",
                new Random().nextInt(1000)));

        user.setCreateTime(new Date());
        userMapper.insertUser(user);

        //激活邮件  context thymeleaf的
        Context context = new Context();
        context.setVariable("email", user.getEmail());
        // http://localhost:8080/community/activation/101/code

        String url = domain + contextPath +
                "/activation/" + user.getId() + "/" + user.getActivationCode();
        context.setVariable("url", url);
        String content = templateEngine.process("/mail/activation", context);
        mailClient.sendMail(user.getEmail(), "激活账号", content);

        return map;
    }

    public int activation(int userId, String code) {
        User user = userMapper.selectById(userId);
        if (user.getStatus() == 1) {
            return ACTIVATION_REPEAT;
        } else if (user.getActivationCode().equals(code)) {
            //成功
            userMapper.updateStatus(userId, 1);
            return ACTIVATION_SUCCESS;
        } else {
            return ACTIVATION_FAILURE;
        }
    }

    //    public Map<String, Object> login(String username, String password, int expiredSeconds){
//        // 空值处理
//        return null;
//    }
    public Map<String, Object> login(String username, String password, int expiredSeconds) {
        Map<String, Object> map = new HashMap<>();

        // 空值处理
        if (StringUtils.isBlank(username)) {
            map.put("usernameMsg", "账号不能为空!");
            return map;
        }
        if (StringUtils.isBlank(password)) {
            map.put("passwordMsg", "密码不能为空!");
            return map;
        }

        // 验证账号
        User user = userMapper.selectByName(username);
        if (user == null) {
            map.put("usernameMsg", "该账号不存在!");
            return map;
        }

        // 验证状态
        if (user.getStatus() == 0) {
            map.put("usernameMsg", "该账号未激活!");
            return map;
        }

        // 验证密码
        password = CommunityUtil.md5(password + user.getSalt());
        if (!user.getPassword().equals(password)) {
            map.put("passwordMsg", "密码不正确!");
            return map;
        }

        // 生成登录凭证
        LoginTicket loginTicket = new LoginTicket();
        loginTicket.setUserId(user.getId());
        loginTicket.setTicket(CommunityUtil.generateUUID());
        loginTicket.setStatus(0);
        loginTicket.setExpired(new Date(System.currentTimeMillis() + expiredSeconds * 1000));
        //插入
        loginTicketMapper.insertLoginTicket(loginTicket);
        //返回ticket
        map.put("ticket", loginTicket.getTicket());
        return map;
    }
    //退出 login_ticket  status变化
    public void logout(String ticket) {
        loginTicketMapper.updateStatus(ticket, 1);
    }

    //查询 ticket的
    public LoginTicket findLoginTicket(String ticket) {
        return loginTicketMapper.selectByTicket(ticket);
    }

    public int updateHeader(int id, String headerUrl) {
        return userMapper.updateHeader(id, headerUrl);
    }

}
